Can we take out the second amendment from constitution?
Yes it can. It takes a long process but it is possible. As for it being an inalienable right, that all depends A) on what you think rights are, and B) The process of the US constitution. Regardless of whether it is a right at all, the US constitution can only impact the federal government. So the amendment does not give a right, it merely prevents the US govt from doing something. So if you take it out, it merely takes away a stone from the path of the US govt. Rights are a theory developed over time. They started in the battle between the English parliament and king, the king did not have absolute power, but enough to keep him king, unlike others. They are not god given, or anything like that, they are man made and fragile at that. But anything can be taken from the constitution, there is a process for amending the constitution and no part of the constitution is safe from that process.
As it is an amendment to our Constitution it would take Two-thirds of both houses of Congress vote to propose an amendment, or Two-thirds of the state legislatures ask Congress to call a national convention to propose amendments. (This method has never been used.) To Ratify Amendments Three-fourths of the state legislatures approve it, or Ratifying conventions in three-fourths of the states approve it. This method has been used only once — to ratify the 21st Amendment — repealing Prohibition.
